editattendees.html

<style type="text/css">
	select { width: 220px }
</style>

<form id="assignform" method="post" action="">
<div>
<input type="hidden" name="previoussearch" value="<?php p($previoussearch) ?>" />
<input type="hidden" name="backtoallsessions" value="<?php p($backtoallsessions) ?>" />
<input type="hidden" name="sesskey" value="<?php p(sesskey()) ?>" />
  <table summary="" style="margin-left:auto;margin-right:auto" border="0" cellpadding="5" cellspacing="0">
    <tr>
      <td valign="top">
          <label for="removeselect"><?php print_string('existingusers', 'role', $existingcount); ?></label>
          <br />
          <select name="removeselect[]" size="20" id="removeselect" multiple="multiple"
                  onfocus="getElementById('assignform').add.disabled=true;
                           getElementById('assignform').remove.disabled=false;
                           getElementById('assignform').addselect.selectedIndex=-1;">

          <?php
            $i = 0;
            if ($existingcount > 0) {
                foreach ($existingusers as $existinguser) {
                    $fullname = fullname($existinguser, true);
                    echo "<option value=\"$existinguser->id\">".$fullname."</option>\n";
                    $i++;
                }
            }
            if ($i==0) {
                echo '<option/>'; // empty select breaks xhtml strict
            }
          ?>

          </select>
		  
      </td>
      <td valign="top">
        <br />
        <?php //check_theme_arrows(); ?>
        <p class="arrow_button">
            <input name="add" id="add" type="submit" value="<?php echo ' &laquo; '.get_string('add'); ?> " title="<?php print_string('add'); ?>" />
            <br />
            <input name="remove" id="remove" type="submit" value="<?php echo ' &raquo; '.get_string('remove'); ?> " title="<?php print_string('remove'); ?>" />
        </p>
      </td>
      <td valign="top">
          <label for="addselect"><?php print_string('potentialusers', 'role', $usercount); ?></label>
          <br />
          <select name="addselect[]" size="20" id="addselect" multiple="multiple"
                  onfocus="getElementById('assignform').add.disabled=false;
                           getElementById('assignform').remove.disabled=true;
                           getElementById('assignform').removeselect.selectedIndex=-1;">
          <?php
            $i=0;
            if (!empty($searchtext)) {
                echo "<optgroup label=\"$strsearchresults (" . $availableusers->_numOfRows . ")\">\n";
				
				foreach ($availableusers as $au) {
					echo "<option value=\"$au->id\">".$au->firstname." " . $au->lastname . "</option>\n";
				}

                echo "</optgroup>\n";

            } else {
                if ($usercount > MAX_USERS_PER_PAGE) {
                    echo '<optgroup label="'.get_string('toomanytoshow').'"><option></option></optgroup>'."\n"
                          .'<optgroup label="'.get_string('trysearching').'"><option></option></optgroup>'."\n";
                } 
				else {
					foreach ($availableusers as $au) {
						echo "<option value=\"$au->id\">".$au->firstname." " . $au->lastname . "</option>\n";
					}

                }
            }
            if ($i==0) {
                echo '<option/>'; // empty select breaks xhtml strict
            }
          ?>
         </select>
         <br />
		 
       </td>
    </tr>
    </table>

    <?php

        if ($nonattendees) {
            echo '<br />';
            //print_heading(get_string('unapprovedrequests', 'webinar').' ('.$nonattendees.')');
            //print_table($table);
			echo $OUTPUT->heading(get_string('unapprovedrequests', 'webinar').' ('.$nonattendees.')');
			echo html_writer::table($table);
        }

    ?>

</div>
</form>